Valve



E. W. SCRIBNER AND R. DEPEE.

VALVE.

APPLICATIQN FILED MAY 31. 1921.

1,405,643 1 Patented Feb. 7, 1922.

W attorney UNITED, STATES EDWARD w. SCRIBNER'AND ROY ONE-HALF T0 NOEL w. WYATT AND OLAF VALVE.

" i Application filed May 31,

of the gas when it exceeds a predetermined,

' amount, but adapted to close below a predetermined point.

In the present invention, we have provided an automatic valve of this'type wherein a pivoted trough or guide member is employed,

the pivoted trough being maintained in raised position by the pressure of the gas. When thegas pressure lowers, the weight of one end of the trough causes it to lower and a ball valve arranged therein is deliveredto a valve seat in the gas line, a

valvefseat being arranged in alinement with the end of the trough.

It is an object of the present invention to provide a valve of this type of simple construction and relatively few parts.

It is a further object to provide a valve that will be positive in operation and will close as soon as the gas pressure ceases or diminishes below a desired point.

In the accompanying drawings, .we. have shown one embodiment: of the invention. In this showing: v

Figure 1 is a central vertical longitudinal sectional view, 7

Figure 2 is a transverse vertical sectional view on line 2-2 of Figure 1,

Figure 3 is a detail view of the pivoted trough, and,

Figure 4 is a similar view of the trough actuating member.

Referring to the drawings, the reference numeral 1 designates the valve chamber, which may be substantially semi-cylindrical in shape, as shown, and provided with a. cover plate 2. The cover plate is retained in position by bolts 3, permitting easy access to the interior of the valve chamber.

The inlet pipe 4 extends longitudinally of the valve chamber near the bottom thereof, the inlet pipe being provided with an opening 5 communicating with the valve 611M11 Specification of Letters Patent.

an inlet 14. Adjacent the A tion shown in Figure 1 of PATENT OFFICE.

DEPEE, OF DOUTHAT; OKLAHOMA, ASSIGNORS OF BAKER, BOTH OF MIAMI, OKLAHOMA.

1921. Serial No. 473,956. ber. At the opposite end of the chamber,

an outlet pipe 6 is provlded, the inner endof the outlet pipe being arrangedat an angle,

as at 7, and provided with an. end closure- 8 having a valve seat 9 formed therein. The endclosure is provided ing 1O.

The p voted trough 11 is provided withv a pair ofears'12, arrangedadjacent one end for the reception of a pivot pin 13. p The end of the trough adjacent the pivot is closed by other end of the trough, thereis provided a plate 15 of substantial area which is positioned over the opening 5' in the inlet pipe-whereby the pressure. of the incoming gas is exerted to main: tain the trough in the operative, dotted line Y Patented Feb. 7, 1922..

with a central openposition shown in F1gure:.1- of the drawings. 1

A crank16, mounted on a shaft 17 is arranged in the bottom of the casing to permit seating of the valve when the gas pressure has been cut ofl'l: The crank 16 is adapted to enga e the plate 15 and the shaft 17 is provide 'with' an operating handle 18. As shown, the shaft extends through a packing gland 19. Meansare provided for returning the ball to the trough when the valve is to be reseated. As shown,a chamber 20 is arranged in alinement with the inner end? of the outlet pipe. and a rod 21 extends through this chamber to a position adjacent the open ing 10. A spring 22 is arranged in the chamber, one end of the spring abutting the bottom wall 23 thereof, and being secured-to the rod. Theend of the chamber is closed by. a nut or sleeve. 24, hav-, ing a packing nut 25 arranged thereon.

A ball valve 26 is arranged in the trough 11 and is adapted to rest upon the valveseat 9 when the parts are in the position shown in Figure 1 of the drawings- In operation, with the parts in the posithe drawings,

be opened, the rod 21 is when the valve is to to lift the ball valve first pushed inwardly into the end of the then turned and the crank 16 engages the plate 15 to raise the trough to the dotted line position shown. The relative size of the parts and the arrangement of the pivot is such that the trough will be retained in raised position by the pressure of the gas when the pressure is equal to or greater than the predetermined minimum and gas flows through the opening 10 into the the other 'end' trough. The shaft 17 is I outlet pipe.

As soon as the flow of gas ceases, or falls below the point of safety, the weight of the large end of the trough is suflicient to cause the trough to move to the full line position, and the ball valve 26 assumes a position shown on the valve seat closing the valve.

, It'is to be understood that the form of our invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the'subjoined claims.

Having thus described our invention, we claim:

1. An automatic gas valve, comprisi'nga' casing having an inlet and an outlet, a

trough pivotally mounted in said casing and 2e" normally assuming a lowered position, a plate secured to said trough, said plate being disposed in the path of gas passing through the casing whereby the trough is maintained in raised position by the flow of gas, a valve seat arranged on said outlet, and a ball valve arranged in said trough adapted to engage said seat when the trough isin lowered position.

' 2. An automatic gas valve, comprising a casing having an inlet and an outlet, a trough pivotally mounted therein, a plate secured to said trough, said plate being arranged in the path of travel of the gas whereby the trough is maintained in raised position by the flow of gas, a valve seatarranged on said outlet, a ball valve arranged in said trough and adapted to engage said seat when the trough is in lowered position, and means for manually raising said trough topermit fiow of gas.

An' automatic gas, valve comprising a casing having an inlet and an outlet, a trough pivotally mounted in said casing and normally assuming a lowered position, a plate secured to said trough, said plate being disposed in the path of gas passing through the casing whereby the trough is maintained in raised position by the flow of gas,

a valve seat arranged on said outlet, aball valve arranged in said trough and adapted to drop into and engage said valve seat when the trough is inlowered position, and

ball valve arranged in said trough and adapted to drop into and engage said valve seat when the trough is in lowered position,-

means for returning said ball valve, to said trough, and means for manually raisingsaid trough to permit the flow of gas.

5. An automatic gas valve comprising a casing having an inlet and an outlet, a trough pivotally mounted in said casing and normally assuming a lowered position, a plate secured to said trough, saidplate being disposed in the path of gaspassing through the casing whereby the trough is maintained in raised position by the fiow of gas, a valve seat arranged on said outlet, a ball valve arranged in said trough and adapted to drop into and engage said valve seat when the trough is in lowered position,

and a manually operated plunger having its inner end normally disposed beneath said valve and adapted upon actuation to return said plate to said trough;

In testimony whereof weaiiix our signatures in presence of two witnesses.

EDWARD W. S'CRIBNER. ROY DEPEE. \Vitnesses:

CHAS. R. WARDEN, R, DAV 

